Home / 218,424.96-327,637.20-68,678.36

Finding the Fourth Proportional to 218,424.96, 327,637.20 and 68,678.36

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Solution

The fourth proportional to 218,424.96, 327,637.20 and 68,678.36 is: 103,017.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,424.96 : 327,637.20 = 68,678.36 : x
  2. Step 2: Convert to fraction form
    218,424.96/327,637.20 = 68,678.36/x
  3. Step 3: Cross multiply
    218,424.96x = 327,637.20 × 68,678.36
  4. Step 4: Simplify right side
    218,424.96x = 22,501,585,570.99
  5. Step 5: Solve for x
    x = 22,501,585,570.99/218,424.96
  6. Step 6: Final answer
    x = 103,017.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.